SPOOL VALVE AND SPOOL VALVE DEVICE

• Main Authors: YASUDA TOMOHIRO, MIYAKE JUNPEI, SHIZUKU OSAMICHI, WATANABE SEITO
• Format: Patent
• Language: English; Japanese
• Published: 02.04.2020
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

To provide a spool valve 50, in which the characteristics of the change in amount of outflow of fluid with respect to the change in current may be changed depending on the port.SOLUTION: A first holding part 52a holds an axial rear side end of an outer coil spring 80 and an axial rear side end of an inner coil spring 81. The axial rear side end of the outer coil spring 80 is pressed onto a first surface 52a3 of the first holding part 52a. The axial rear side end of the inner coil spring 81 is pressed onto a second surface 52a4 of the first holding portion 52a. A plug 70 holds an axial front side end of the outer coil spring 80 and an axial front side end of the inner coil spring 81. The axial front side end of the outer coil spring 80 is pressed onto a third surface 70b of the plug 70. The axial front side end of the inner coil spring 81 is pressed onto a fourth surface 70d of the plug 70. An axial distance L1 between the first surface 52a3 and the third surface 70b when the power is not supplied is longer than a free length L2 of the outer coil spring 80.SELECTED DRAWING: Figure 5 【課題】電流の変化に対する流体の流出量の変化の特性をポートに応じて異ならせることができるスプール弁５０を提供する。【解決手段】第１保持部５２ａが、外側コイルバネ８０の軸方向リア側端部、及び内側コイルバネ８１の軸方向リア側端部を保持し、第１保持部５２ａの第１面５２ａ３に、外側コイルバネ８０の軸方向リア側の端が押し当てられ、第１保持部５２ａの第２面５２ａ４に、内側コイルバネ８１の軸方向リア側の端が押し当てられ、プラグ７０が、外側コイルバネ８０の軸方向フロント側端部、及び内側コイルバネ８１の軸方向フロント側端部を保持し、プラグ７０の第３面７０ｂに、外側コイルバネ８０の軸方向フロント側の端が押し当てられ、プラグ７０の第４面７０ｄに、内側コイルバネ８１の軸方向フロント側の端が押し当てられ、非通電時における第１面５２ａ３と第３面７０ｂとの軸方向の距離Ｌ１が、外側コイルバネ８０の自由長Ｌ２よりも長い。【選択図】図５